Hi. I would like to gather advice about sourcing replacement SMD LEDs and/or LED backlight strip PCBs. As this is a general issue I thought we can have have a new thread.
As you will see here, I have an HP ZR2740W 27" IPS monitor for which I need to repair or replace one of the backlight strips. The panel is made by LG. I cannot work out how to find replacements.
I know the electrical characteristics, physical dimensions and details of the panel. I need to identify the correct replacements and find a supplier who will sell in a low qty (say 10) and ship to UK.
The specs for the LEDs I need to find:
Panel:
Mfr: LG
Panel Model: LM270WQ1-SDDA
Backlight:
Configuration: 2 strip PCBs each with 3 electrical strips of 12 LEDs. 35.5V each.
Part number on PCB "SUNG WEI 20V0", "LM270WQ1 *RIGHT* WR (100223 MB27083U rev B)"
LED chips:
Fwd Current: 310-330mA
Voltage: 3V
Power: Approx 1W
Size: 3mm square
Lens: hemispherical domed yellow lens
Package: 4 pin SMD, only 2 pins used.
Obviously they also need to be the same colour and luminosity but I can't see specs for these. Is there at least a standard colour temp used?
I have attached pics showing the LEDs next to a ruler. The one I have damaged (during disassembly) shows the electrical pinout.
thanks in advance!
As you will see here, I have an HP ZR2740W 27" IPS monitor for which I need to repair or replace one of the backlight strips. The panel is made by LG. I cannot work out how to find replacements.
I know the electrical characteristics, physical dimensions and details of the panel. I need to identify the correct replacements and find a supplier who will sell in a low qty (say 10) and ship to UK.
The specs for the LEDs I need to find:
Panel:
Mfr: LG
Panel Model: LM270WQ1-SDDA
Backlight:
Configuration: 2 strip PCBs each with 3 electrical strips of 12 LEDs. 35.5V each.
Part number on PCB "SUNG WEI 20V0", "LM270WQ1 *RIGHT* WR (100223 MB27083U rev B)"
LED chips:
Fwd Current: 310-330mA
Voltage: 3V
Power: Approx 1W
Size: 3mm square
Lens: hemispherical domed yellow lens
Package: 4 pin SMD, only 2 pins used.
Obviously they also need to be the same colour and luminosity but I can't see specs for these. Is there at least a standard colour temp used?
I have attached pics showing the LEDs next to a ruler. The one I have damaged (during disassembly) shows the electrical pinout.
thanks in advance!
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